公开(公告)号：EP1957180A1

公开(公告)日：2008-08-20

申请号：EP06844406.6

申请日：2006-11-16

Applicant: CORNING INC.

Inventor： BEALL, Douglas M ,  MERKEL, Gregory A ,  THOMPSON, David J

IPC: B01D46/24 ,  C04B35/195 ,  C04B38/00

CPC classification number: B01D39/2068 ,  B01D46/0001 ,  B01D46/2425 ,  B01D46/2429 ,  B01D46/244 ,  B01D46/2444 ,  B01D46/2448 ,  B01D2046/2433 ,  B01D2046/2496 ,  C04B35/195 ,  C04B38/0006 ,  C04B2111/00198 ,  C04B2201/00 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/322 ,  C04B2235/3222 ,  C04B2235/3418 ,  C04B2235/3445 ,  C04B2235/3463 ,  C04B2235/349 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2235/9607 ,  Y10S55/05 ,  Y10S55/10 ,  Y10S55/30 ,  Y10S264/48 ,  Y10T428/24149 ,  C04B38/0054 ,  C04B38/0067 ,  C04B38/0074

Abstract: A porous cordierite ceramic honeycomb article with increased mechanical strength and thermal shock resistance. The porous cordierite ceramic honeycomb article has MA 2660 wherein MA = 3645 (IA) - 106 (CTE) + 19 (d90) + 17 (%porosity), MT = 4711 (IT) + 116 (CTE) - 26 (d90) - 28 (%porosity), and a CTE 9 x 10-7/°C in at least one direction. A method of manufacturing is also disclosed wherein the inorganic raw material mixture contains talc, an alumina-forming source, a silica-forming source, and 0 - 18 wt. % of a kaolin or calcined kaolin containing not more than 8 wt. % of a fine kaolin source having a median particle diameter of less than 7 µm, wherein the fired porous ceramic cordierite honeycomb article has a porosity